@bigbighill: "cmwap" seems to indicate that the operator access point is using a WAP gateway. These are notorious for causing trouble for traffic that is not pure HTTP or WSP/WTP. But without knowing more details involved in your particular it's of course just a guess.
@mavric06: could you perhaps provide some details? Stuff like which operator you are using, if you have any proxy configured on your handset and if there is any indication that the operator access point is using a WAP gateway (i.e. any mention of WAP in AP settings).